| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 57 |
16.2%
|
| 2 | no | 291 |
82.7%
|
| 3 | (dk) | 2 |
0.6%
|
| 4 | (ref) | 2 |
0.6%
|
| Sysmiss | 648 |